Yanmar 3TNV88F - FUEL SYSTEM

3TNV88F Service Manual
7-1
3TNV88F Service Manual
Section 7
FUEL SYSTEM
Page
Before You Begin Servicing ............................................................ 7-3
Trochoid Fuel Pump.................................................................. 7-4
Electronically Controlled Governor............................................ 7-4
Fuel System Specifications ............................................................. 7-5
Special Torque Chart................................................................. 7-5
Special Service Tools...................................................................... 7-7
Measuring Instruments.................................................................... 7-7
Fuel System Diagram...................................................................... 7-8
Fuel System Components............................................................... 7-9
Fuel Injection Pump....................................................................... 7-11
Removal of Fuel Injection Pump.............................................. 7-11
Installation of Fuel Injection Pump........................................... 7-15
Checking and Adjusting Fuel Injection Timing .............................. 7-20
Determining the Fuel Injection Timing Specification................ 7-20
Checking Fuel Injection Timing ............................................... 7-21
Adjusting Fuel Injection Timing................................................ 7-24
Fuel Injectors................................................................................. 7-25
Removal of Fuel Injectors........................................................ 7-25
Testing of Fuel Injectors .......................................................... 7-27
Disassembly and Inspection of Fuel Injectors ......................... 7-28
Adjusting Fuel Injector Pressure.............................................. 7-30
Reassembly of Fuel Injectors .................................................. 7-30
Installation of the Fuel Injectors............................................... 7-31
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